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        <h1>分布式都有哪些内容 - 学习卡片</h1>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
      <div class="card">
        <div class="card-face card-front">
          <div class="card-category">理论</div>
          <div class="card-question">什么是分布式系统？它的四个主要特点是什么？</div>
          <div class="card-footer">点击卡片查看答案</div>
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          <div class="card-category">理论</div>
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            <div class="card-answer">分布式系统是指多个计算机通过网络连接，协同工作完成特定任务的系统。其主要特点包括分布性、并发性、无全局时钟和容错性。</div>
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          <div class="card-source">来源: 1. 分布式系统的基本概念</div>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
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        <div class="card-face card-front">
          <div class="card-category">理论</div>
          <div class="card-question">BASE 理论是对 CAP 理论的补充，请解释 BASE 理论的三个核心要素。</div>
          <div class="card-footer">点击卡片查看答案</div>
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        <div class="card-face card-back">
          <div class="card-category">理论</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">BASE 理论的三个核心要素是：基本可用（Basically Available）、软状态（Soft state）和最终一致性（Eventual consistency）。该理论强调通过这三点来实现大规模分布式系统的高可用性和容错性。</div>
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          <div class="card-source">来源: 2. 分布式计算模型</div>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
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        <div class="card-face card-front">
          <div class="card-category">模式</div>
          <div class="card-question">在微服务架构中，API 网关的作用是什么？</div>
          <div class="card-footer">点击卡片查看答案</div>
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          <div class="card-category">模式</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">API 网关作为客户端与微服务之间的中介，提供路由、认证、限流、缓存等功能。</div>
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          <div class="card-source">来源: 3. 分布式架构设计</div>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
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        <div class="card-face card-front">
          <div class="card-category">技术</div>
          <div class="card-question">为了解决分布式系统中跨多个节点的数据一致性问题，文档中提到了哪些分布式事务协议？</div>
          <div class="card-footer">点击卡片查看答案</div>
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          <div class="card-category">技术</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">文档中提到的分布式事务协议包括两阶段提交（2PC）和三阶段提交（3PC）。</div>
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          <div class="card-source">来源: 4. 分布式数据管理</div>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
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        <div class="card-face card-front">
          <div class="card-category">特性</div>
          <div class="card-question">在设计分布式系统时，为何要考虑幂等性？它的主要目的是什么？</div>
          <div class="card-footer">点击卡片查看答案</div>
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          <div class="card-category">特性</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">幂等性设计的主要目的是确保在网络重试等情况下，重复的请求不会导致系统的状态异常或数据重复。</div>
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          <div class="card-source">来源: 5. 分布式系统的容错与恢复</div>
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        <div class="card-face card-front">
          <div class="card-category">技术</div>
          <div class="card-question">消息队列（如 Kafka、RabbitMQ）如何提升分布式系统的性能与可靠性？</div>
          <div class="card-footer">点击卡片查看答案</div>
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        <div class="card-face card-back">
          <div class="card-category">技术</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">消息队列通过异步处理和解耦组件，能够提升系统的吞吐量和可靠性。</div>
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          <div class="card-source">来源: 6. 分布式系统的性能与扩展</div>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
      <div class="card">
        <div class="card-face card-front">
          <div class="card-category">技术</div>
          <div class="card-question">文档中列举了哪些用于实现分布式系统访问控制的常见认证机制？</div>
          <div class="card-footer">点击卡片查看答案</div>
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        <div class="card-face card-back">
          <div class="card-category">技术</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">文档中提到的常见认证机制有 OAuth 和 JWT。</div>
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          <div class="card-source">来源: 7. 分布式系统的安全性</div>
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          <div class="card-category">机制</div>
          <div class="card-question">什么是分布式追踪？它在分布式系统运维中有什么用途？</div>
          <div class="card-footer">点击卡片查看答案</div>
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          <div class="card-category">机制</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">分布式追踪是用于跟踪和分析分布式系统中请求的执行路径的一种机制，常见工具有 Jaeger 和 Zipkin。</div>
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          <div class="card-source">来源: 8. 分布式系统的监控与运维</div>
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    <div class="card-container" onclick="this.classList.toggle('flipped');">
      <div class="card">
        <div class="card-face card-front">
          <div class="card-category">机制</div>
          <div class="card-question">文档中提到了哪些用于实现分布式锁的技术方案？</div>
          <div class="card-footer">点击卡片查看答案</div>
        </div>
        <div class="card-face card-back">
          <div class="card-category">机制</div>
          <div class="card-answer-wrapper">
            <div class="card-answer">文档中提到的常见分布式锁实现方案有基于 Redis、Zookeeper 和 etcd 的分布式锁。</div>
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          <div class="card-source">来源: 4. 分布式数据管理</div>
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